Add air components (toggle-group, toolbar, avatar, meter, collapsible), fix CSS audit issues, fix combobox scroll, rebuild documentation
Components:
- Add ToggleGroup air wrapper (surface/outline/ghost variants, 6 colors, sound)
- Add Toolbar air wrapper (Provider, Group, GroupItem, Button, Link + semantics)
- Add Avatar air wrapper (6 sizes, solid/soft/outline, 6 colors, 4 radii)
- Add Meter air wrapper (3 sizes, 6 colors, animated fill bar)
- Add Collapsible air wrapper (trigger, animated content, expansion semantics)
CSS audit fixes:
- Rename 65 public resolver vars to private (--_air-*) in checkbox, switch
- Fix button radius privatization and warning solid-fg
- Fix slider circular reference in default tokens
- Add disabled-opacity tokens to button, toggle, tabs, toggle-group
- Tokenize combobox chip styles (12 direct semantic refs → component tokens)
- Fix tabs stack-gap public override → private resolver
Bug fix:
- Fix combobox scroll-on-open: replace scrollIntoView() with viewport-scoped
scroll in select.svelte.ts to prevent page scroll when opening dropdown
Documentation rebuild (19 → 9 normative + 5 archived):
- Consolidate 15 air docs into 6 (README, ARCHITECTURE, TOKENS, VISUAL_LANGUAGE, SEMANTICS, IMPLEMENTATION_GUIDE)
- Archive 5 historical docs to _archive/
- Fix config/ → system/ references across terra and air docs
- Update component inventory (13 → 30 components)
- Fix font documentation (add Lora serif, update 12-step scale)
- Absorb SVELTE5_BINDABLE_PATTERN into terra README
- Update air hub page with all new component entries
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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